Create UppercaseFirstKeyFilter.php

josegonzalez · Dec 25, 2015 · 9ad89f3 · 9ad89f3
1 parent e67f842
commit 9ad89f3
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diff --git a/src/josegonzalez/Dotenv/Filter/UppercaseFirstKeyFilter.php b/src/josegonzalez/Dotenv/Filter/UppercaseFirstKeyFilter.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace josegonzalez\Dotenv\Filter;
+
+class UppercaseFirstKeyFilter
+{
+    /**
+     * Uppercases the first letter for all the keys for an environment to a single-depth.
+     *
+     * @param array $data Array of environment data
+     * @return array
+     */
+    public function __invoke(array $environment)
+    {
+        $newEnvironment = array();
+        foreach ($environment as $key => $value) {
+            $newEnvironment[ucfirst($key)] = $value;
+        }
+        return $newEnvironment;
+    }
+}
diff --git a/tests/josegonzalez/Dotenv/LoaderTest.php b/tests/josegonzalez/Dotenv/LoaderTest.php
@@ -281,6 +281,26 @@ public function testNullFilter()
         ), $this->Loader->toArray());
     }
 
+    /**
+     * @covers \josegonzalez\Dotenv\Filter\UppercaseFirstKeyFilter::__invoke
+     */
+    public function testUppercaseFirstKeyFilter()
+    {
+        $this->Loader->setFilters(array(
+            'josegonzalez\Dotenv\Filter\LowercaseKeyFilter',
+            'josegonzalez\Dotenv\Filter\UppercaseFirstKeyFilter',
+        ));
+        $this->Loader->setFilepath($this->fixturePath . '.env');
+        $this->Loader->parse();
+        $this->Loader->filter();
+        $this->assertEquals(array(
+            'Foo' => 'bar',
+            'Bar' => 'baz',
+            'Spaced' => 'with spaces',
+            'Equals' => 'pgsql:host=localhost;dbname=test',
+        ), $this->Loader->toArray());
+    }
+
     /**
      * @covers \josegonzalez\Dotenv\Filter\UrlParseFilter::__invoke
      * @covers \josegonzalez\Dotenv\Filter\UrlParseFilter::get